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Clinical Trial
. 2011 Jun;12(6):542-9.
doi: 10.1016/j.sleep.2010.11.011. Epub 2011 May 20.

Normative values of polysomnographic parameters in childhood and adolescence: quantitative sleep parameters

Sabine Scholle  1 , Uta Beyer, Michael Bernhard, Stephan Eichholz, Thomas Erler, Petra Graness, Barbara Goldmann-Schnalke, Katharina Heisch, Frank Kirchhoff, Karsten Klementz, Gerhard Koch, Annmarie Kramer, Christoph Schmidtlein, Barbara Schneider, Birgit Walther, Alfred Wiater, Hans Christoph Scholle
Affiliations
Clinical Trial

Normative values of polysomnographic parameters in childhood and adolescence: quantitative sleep parameters

Sabine Scholle et al. Sleep Med. 2011 Jun.

Abstract

Objective: To provide normative values for sleep macroarchitecture of healthy children aged 1-18 years using the AASM sleep scoring criteria, assessing the effects of gender, age, and Tanner pubertal stage.

Methods: One-night polysomnography was performed at subjects' habitual bedtimes in 16 laboratories on 209 healthy German children.

Results: Normal values of sleep macrostructure show significant age dependencies (p<0.05). Increasing with age: awakening index, R latency (RL), sleep efficiency (SE) (total sleep time (TST)/sleep period time (SPT)) and SE (TST/time in bed), stage N2, mean sleep cycle duration, number of stage shifts. Decreasing with age: TST, SPT, wake after sleep onset, stage N3, stage R, movement time (MT), number of sleep cycles. The following sleep parameters show a dependency on Tanner stages as well as corresponding age (p<0.05):TST, SPT, awakening index, R latency, stage N2, stage N3, MT, number of sleep cycles, mean sleep cycle duration. No gender dependencies were found.

Conclusion: The given study, considering AASM rules, shows the development of sleep in normal children ages 1-18. Subject selection criteria and other factors influencing sleep as well AASM guideline modifications including scoring arousals in N2 and scoring MT as a measure of sleep fragmentation are discussed.

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